CVE-2023-25836 BUG-000135364 XSS in 10.8.1 sites builder iframe source

What is CVE-2023-25836?

CVE-2023-25836 is a medium-severity cross-site scripting vulnerability in Esri Portal for Arcgis, published on 21 Jul 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

There is a Cross-site Scripting vulnerability in Esri Portal for ArcGIS Sites in versions 10.9 and below that may allow a remote, authenticated attacker to create a crafted link which when clicked could potentially execute arbitrary JavaScript code in the victims browser.  The privileges required to execute this attack are low.

Weakness: CWE-79

Which versions are affected by CVE-2023-25836?

It affects 1 product.

Products include Esri Portal for Arcgis.

How do I fix CVE-2023-25836?

No fix has been published for CVE-2023-25836 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2023-25836 being exploited?

There is no known exploitation of CVE-2023-25836 in the wild and no public exploit code.

Other vulnerabilities in Esri Portal for Arcgis

• CVE-2024-25693 Portal for ArcGIS has a directory traversal vulnerability. Critical 9.9
• CVE-2026-13019 Missing Authentication Critical 9.8
• CVE-2026-33518 Incorrect privilege assignment in Portal for ArcGIS Critical 9.8
• CVE-2026-33519 Incorrect privilege assignment in Portal for ArcGIS Critical 9.8
• CVE-2025-2538 BUG-000174336 Critical 9.8

All Esri Portal for Arcgis vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-5w6r-7h9g-pfhr.